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add up the length of all the sides

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Q: How do l work out the area of a the perimeter of a triangle?
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How do l work out the perimeter of a triangle?

Add up the length of all sides


How do you do perimeter and area of L?

Area: Find some of the lengths, then cut the L in half and work it out from there. Perimeter: Add all the lengths together.


Perimeter of a right triangle?

l + w + √(l2 + w2)


Parameter of rectangle equal parameter of triangle?

I hope you want to know the Perimeter. Perimeter is the total length of the boundary of the region bounded by a shape. For a rectangle it is the sum of the 4 bounding sides, or 2*(L+B), where L is Length of the rectangle and B is Breadth of the rectangle. For a Triangle it is the sum of the 3 sides. If you consider an equilateral triangle. By property the 3 sides of an equilateral triangle are equal. Hence the Perimeter of an equilateral triangle is denoted as; 3*a, where a is the length of one of the sides of the triangle. It is possible that the perimeter of a rectangle is same as that of many different types of triangles. We can formulate a relationship for a special case where the perimeter of a rectangle is equal to the perimeter of an equilateral triangle; P(R) = P(ET), P(R) is perimeter of rectangle and P(EQ) is perimeter of Equilateral triangle. P(R)=2(L*B) = P(EQ) = 3*a; hence, a = (2/3)*(L*B) = P(R)/3. i.e., the sides of the Equilateral triangle are one thirds of the perimeter of the rectangle.


What is area of square with perimeter 8?

as perimeter =8 so 4l=8 , so l=2. now area= [l][l]=(2)(2)=4


How do you find the perimeter of a right isosceles triangle if you already know its area?

Suppose the lengths of the short sides of the triangle are L Then, by Pythagoras, the third side is sqrt(L2 + L2) = sqrt(2L2) = L*sqrt(2) So the perimeter is L+L+L*sqrt(2) = L*[2+sqrt(2)] Also, if the length of the two short sides is L, the area, A, is 0.5*L*L that is A = 0.5*L2 or L = sqrt(2*A) Combining the two equations, given A, he perimeter is sqrt(2*A)*[2+sqrt(2)] =sqrt(A)*[2*sqrt(2)+2] or 2*sqrt(A)*[1+sqrt(2)] Hope that is correct and helps.


How do you find the length and wide of an area if you know the perimeter and an area?

Perimeter = 2*L + 2*W Area = L*W L = Area / W Perimeter = 2*Area / W + 2*W W * Perimeter = 2*Area + 2*W^2 Let A=area, and P= perimeter. 0=2W^2-PW+2A Quadratic formula: W= (P + root(P^2-16A))/4 or W= (P - root(P^2-16A))/4 Once you have W, L is simply A/W. Have fun, and maybe include some numbers to work with next time.


What is the perimeter and area of a yard that length is 20ft and width is 15ft?

Perimeter l+l+w+w= 70ft Area LxW =300 sqft


Which of the squares has an area that is equal to its perimeter?

A square that measures 4 per side. Perimeter = L + L + L + L = 4L = 4*4 = 16 Area = L * L = 4*4 = 16 Although technically they won't be equal since perimeter has units of length, while area has units of squared length.


How do you simplify an expression for the perimeter and area of a rectangle?

Represent the length of the rectangle by L and the width by W. The perimeter = 2L + 2W = 2(L + W). The area = L x W.


What is the perimeter of a square with each area of 16 cm squared?

To find the perimeter of a square, you first need to work out the side length. The area of a square is L2 where L is the side length. The area of the square in the question is 16cm2 so L is the square root of 16, or 4. To get the perimeter of the square, we simply multiply the side length by 4. In this case 4x4=16, so the perimeter of the square is 16cm.


How do l work out the area of an equilateral triangle?

0.5 x base length x vertical height